Preservative applicable to measuring DHI milk sample and use method thereof

A preservative and milk sample technology, which is applied in the preservation of dairy products and the field of milk preservatives, can solve the problems of high sample failure rate, short protection period, and heavy metal pollution, so as to reduce the detection rate of bad samples and high safe storage temperature , Conducive to the effect of marketing

Inactive Publication Date: 2017-03-22
HEBEI AGRICULTURAL UNIV. +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under high temperature conditions or long-distance transportation, milk samples are prone to deterioration, resulting in inaccurate or impossible determination of milk components
Most of the existing preservatives use potassium dichromate for anti-corrosion, which has high toxicity and poor effect, and there is a risk of heavy metal pollution. In summer high temperature season, the anti-corrosion period is only 1-2 days, the protection period is short, and it is restricted by environmental conditions. The applicability is poor, and the failure rate of samples is high, resulting in the waste of milk samples and the increase of testing and sampling costs; the German imported product Hikrot granules can last for more than 7 days, but the price is expensive

Method used

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  • Preservative applicable to measuring DHI milk sample and use method thereof
  • Preservative applicable to measuring DHI milk sample and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A special preservative suitable for the determination of DHI milk samples, comprising the following components in parts by weight: 10 parts of bronopol and 5 parts of sodium azide.

[0019] After the milk sample was collected, 50 mL was divided into one sample, 10 mg of bronopol and 5 mg of sodium azide were added at room temperature, placed in a 40°C incubator, and the milk sample was observed for 7 days and tested.

Embodiment 2

[0021] A special preservative suitable for the determination of DHI milk samples, comprising the following components in parts by weight: 10 parts of bronopol and 10 parts of sodium azide.

[0022] After the milk sample was collected, 50 mL was divided into one sample, 10 mg of bronopol and 10 mg of sodium azide were added at room temperature, placed in a 40°C incubator, and the milk sample was observed for 7 days and tested.

Embodiment 3

[0024] A special preservative suitable for the determination of DHI milk samples, comprising the following components in parts by weight: 10 parts of bronopol and 25 parts of sodium azide.

[0025] After the milk sample was collected, 50 mL was divided into one sample, 10 mg of bronopol and 25 mg of sodium azide were added at room temperature, placed in a 40°C incubator, and the milk sample was observed for 7 days and tested.

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Abstract

The invention relates to the technical field of dairy product preservation and discloses a preservative applicable to measuring a DHI milk sample and a use method thereof. The preservative comprises the following ingredients in parts by weight: 5-20 parts of bronopol and 5-30 parts of sodium azide. The use method comprises the following step of: adding 0.2-1g of preservative effective ingredients into per litre of the milk sample. The preservative ensures that the cow milk can be preserved for at least 7 days (168 hours) at an environmental temperature of 40 DEG C, has no interference on the milk sample and ensures the DHI milk sample test accuracy. The preservative has the advantages of low cost and good antiseptic effect.

Description

technical field [0001] The invention relates to the technical field of preservation of dairy products, in particular to the technical field of milk preservatives. Background technique [0002] DHI (Dairy herd improvement) is a dairy cow improvement system, also known as a dairy cow production performance recording system. Improve the production record system of dairy cows by recording the output of dairy cows in each dairy farm, analyzing milk components, counting somatic cells in milk, etc., and then formulate a more scientific management plan for the dairy farm, in order to improve the quality of milk and the economy of the dairy farm Benefits provide basic analytical data and also benefit the genetic improvement of the overall herd. However, under high temperature conditions or long-distance transportation, milk samples are prone to deterioration, resulting in inaccurate or impossible determination of milk components. Most of the existing preservatives use potassium dic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23C3/08
CPCA23C3/08
Inventor 刘聚祥马亚宾黄康东
Owner HEBEI AGRICULTURAL UNIV.
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